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Finding the Fourth Proportional to 110,979,487.80, 155,626,374.60 and 110,979,487.80

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Solution

The fourth proportional to 110,979,487.80, 155,626,374.60 and 110,979,487.80 is: 155,626,374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,979,487.80 : 155,626,374.60 = 110,979,487.80 : x
  2. Step 2: Convert to fraction form
    110,979,487.80/155,626,374.60 = 110,979,487.80/x
  3. Step 3: Cross multiply
    110,979,487.80x = 155,626,374.60 × 110,979,487.80
  4. Step 4: Simplify right side
    110,979,487.80x = 17,271,335,341,278,928
  5. Step 5: Solve for x
    x = 17,271,335,341,278,928/110,979,487.80
  6. Step 6: Final answer
    x = 155,626,374.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.